Impeoved



piuma mes @anni @eine CHARLES G. COLE, OF NORTHFIELD, VERMONT.

Letters Patent N0.-61,400, dated January 22, 1867.

` IMPROVBD FETERING TUBE FOR WELLS.

TO ALL WHOM 1T MAY GONCERN:

Be it known that I, QHARLES C. COLE, of Northfield, in thecounty ofWashington, and State of lVermont, have invented a new and usefulimprovement in Filtering Tubular Wells; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, which willenable others skilledin the art to make and use the same, referencebeing had to the accompanying drawings, forming part of thisspecification, in which- Figure 1 is a side view of the lower part of'the well tube, the hinged plate being turned up or opened.

Figure 2 is a vertical longitudinal central section of the same, showingtwo ways of protecting the countersunk strainers.

Figure 3 is a cross-section of the same, taken through line :i: rv, g.1, showing the countersunk strainers protected by hinged plates. f'

Figure 4" :13 cross-section of 'che same, showing the countersunkstrainers protected by stationary plates.

Figure 5 is a side view of-a, modification of my invention, illustratingthe manner of protecting the eountersunk strainerse-when the tube isbored into the ground. i

Figure 6 is a side view of the same, showing the countersunlc strainersuncovered.

Similar letters of reference indicate like parts. A

i My invention relates to the construction of the lower sections oftubing to be useddfor obtaining water cheaply and readily in clay or Isandy regions without 'the expense and trouble of digging wells. And itconsists in forming ceuntersunk strain'ers in the sides of the lowerseetionor sections of the tubing, in protecting said countersunkstrainers with hinged or stationary plates, in the combination ofadjustable cone or cup-shaped strainers with the tubing, and in thecombination of an interior section having countersunk strainers, with anexterior section having screw-threads formed upon it ;A the'whole beingconstructed and arranged as hereinafter more fully described. In thelower section or sections of the lower part of the tubing are formedholes for the ingress of the water; These holes are countersunk, asshown in the drawings, and in the countersinks thus formed are placedstra-incre A, which are secured in place by solder, or in i any otherconvenient and substantial manner. This construction prevents thestrainers from being injured by comingv in contact with the interiorcpv/A exterior tubing, with the protecting plates, or with the'ground.When the tubing is driven into the ground the strainers A are coveredand protected by plates B, which are secured to the sides of the tubingby screws, and kept from covering the strainers too closely by blocks .Cplacedbetween said plates and the side of the tubing and heldin place bythe screws-that hold the said plates. Or the strainers A may beprotectedby plates D -hingednt one end to the side of the tubing, .and the otheredge shutting down at the side of a stationary bar, E, securelyattachedto the side of the tubing. When the hinged plates D are used,the lower section or sections in which the countersunk straincrs A areplaced must be madedouble; that is to say, must consist oi' an exteriorand interior tube, both of which are provided with countersunkstrainers: The movement oi' the exterior and interior tubes upon eachother is regulated by stop-pins F attached to the inner tube, andworking in slots formed in the outer tube, as shown in gs. 1 and 3. Theends of the pins F project through the outer tube, and are inclined, sothat when the inner tube is revolved to bring its strainers opposite tothe strainers in the outer tube, the ends of which pins may raise oropen the hinged plates D, so that the water may enter the tubes andbeuaised by the pump. This construction may be used when the tubing isdriven into the ground, when it is bored into the ground, or when itisplaced in a hole bored by a separate auger. Gr are cone or cup-shapedstraincrsv attached to a central rod, g', and placed wherever'desiredbetween the sections that contain the countersunk strainers A and thepump. The upper ends of the mouths of the stra-iners G'are keptdistended by coiled wire springs, as; shown in iig. 2; and a loop or eyeis formed upon the upper end of the rod g for convenience in removing oradjusting the strainers G, as may be required. 1n figs. 5 and 6 anauger, H, is represented as being formed upon, or attached to, thelowcrend of theinterior tube, se that the tube may be made to force apassage for itself intothe ground; and the exterior tube is representedas having a screw-threml,` l, formed upon it; which screw-thread iscontinued downward to the auger by passing around a band placed upon,and securely attached to, the lower end of the interior tube. Upon theupper edge of this band, and upon the lower edge of the' exterior tubeare formed shoulders, which take holdl of each other` in the manner of aclutch to force the auger into the ground. When the tube has been forcedto the required depth, the outer tube is turned in the other direction,which raises the buter t'be and unooves the countersuuk stmners soy thatthe water can ow into the tube andbe raised by the pump. l v What Iclaim as new, and desire to secure by Letters Patent, is-

1. Protecting the countersnnk straineis A by hinged pates D, orstatinary plates B, snbstantiellyas represented and described. i

2. The couibination of the cone or cup-shaped srainers G Withthetubingsubstantilly s imeiein shown and described.

The above specifieatin of my invention signeii by lme this 6th day ofNovember, 1866.

' CHARLES C. COLE.

Witnesses:

WM. F. McNAMARA, JAMES T. GRAHAM.

